New Comet
ASASSN1 comet C/2017 O1 (no name!)
For 24 July 2017 8:04 UT.
Shall annonate later.
This is an extremely gassy comet. Even in one unprocessed exposure it's very green....
Spiral Galaxy is NGC 1042 mag 11.5.
Comet is around mag 10.0.
Ephemeris details available, below link.
http://www.minorplanetcenter.net/iau...ftwareEls.html